Chitosan is polycationic in nature due to which the polymer can be attached to the negatively charged gold nanoparticle surfaces through electrostatic interactions. Using chitosan enables providing enough steric hindrance ensuring colloid stability and functionalizing nanoparticles to be used as sensors.t is either partially or fully deacetylated chitin. As chitin occurs naturally (for example in fungal cell walls and crustacean shells), chitosan is a fully biodegradable and biocompatible natural polymer, and can be used as an adhesive and as an antibacterial and antifungal agent.
Affiant. Someone who signs an affidavit and swears to its truth before a notary public or another person authorized to take oaths, such as a county clerk. Compare: declarant.
In the United States, a notary public is a person appointed by a state government (e.g., the governor, lieutenant governor, state secretary, or in some cases the state legislature) and whose primary role is to serve the public as an impartial witness when important documents are signed. notary public in Kentucky is appointed by either the Secretary of State or the Governor to administer oaths and take proof of execution and acknowledgements of instruments. Notaries public fulfill their duties to deter fraud and ensure proper execution.